Landsat TM Data Precision Processing and Digital Compound of Multidata

This paper describes the principle, method and accuracy used to precision process-ing TM data. Planimetric accuracy of precision processed TM data can meet requirments of 1:100000 map. The principle and procedure relating to compound of both non-remote sensing dataand remote sensing data is also described in this paper. Compound multidata canimprove accuracy and speed of visual interpretation, autoclassification, field samplingand positioning.